Nik Grinkevich ngrinkevich

## install_postgis_osx.sh
# Some good references are:
# http://russbrooks.com/2010/11/25/install-postgresql-9-on-os-x
# http://www.paolocorti.net/2008/01/30/installing-postgis-on-ubuntu/
# http://postgis.refractions.net/documentation/manual-1.5/ch02.html#id2630392

#1. Install PostgreSQL postgis and postgres

brew install postgis
initdb /usr/local/var/postgres
pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start

## gist:ce883856d0c903acaeadb208af6eea1f
0xb09c059533C35A0a0acb82CdE4b7BeeA25473c81

## gist:db97781b74f0f6302aa7583883498c5c
0xb09c059533C35A0a0acb82CdE4b7BeeA25473c81

## gist:49ce0fb41d109e7750ff28851f3b0712
0x8cbc58399A66840bA65ec7875342C7A64dc3eE44

## bundle.js
import libp2p from 'libp2p'
import PeerInfo from 'peer-info'
import WebRTCStar from 'libp2p-webrtc-star'
import KadDHT from 'libp2p-kad-dht'
import CID from 'cids'

class MyBundle extends libp2p {
  constructor (peerInfo) {
    const wstar = new WebRTCStar()
    const modules = {

## libp2p_node.js
function createNode (callback) {
  PeerInfo.create((err, peerInfo) => {
    if (err) {
      return callback(err)
    }

    const peerIdStr = peerInfo.id.toB58String()
    const address = `/dns4/star-signal.cloud.ipfs.team/wss/p2p-webrtc-star/ipfs/${peerIdStr}`
    peerInfo.multiaddrs.add(address)
    const node = new MyBundle(peerInfo)

## libp2p_index.js
createNode((err, node) => {
    if (err) {
      return console.log('Could not create the Node', err)
    }

    node.on('peer:discovery', (peerInfo) => {
      const idStr = peerInfo.id.toB58String()
      console.log('Discovered a peer:', idStr)
    })

## gist:4661bbb426d72d1f31ad10e06eb18909
import "AssetLedger.sol";

// TODO describe rules of exchange.
// In the AF market all users benefit from a "last look" facility to prevent
// them falling foul of mechanical arb sniping by those exploiting the way
// the blockchain and smart contract data lags the real markets being tracked.
// The system proceeds through a series of batching steps, which in practice
// might correspond to some number of blocks (for example, each batching step
// corresponds to a block). Orders collected in batching step B_i are initially
// in a "pending" state although visible within the book. Orders then remain

## gist:25cfc8f79f957f684b0a8d46cfb0e750
Verifying my Blockstack ID is secured with the address 1N7FJhVSPcrJ95goyecQmaxqtJsZG8gr2P https://explorer.blockstack.org/address/1N7FJhVSPcrJ95goyecQmaxqtJsZG8gr2P

## keybase.md

      
        
          
            
              
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                ngrinkevich
                / keybase.md
            
            
              Created
              November 24, 2017 14:40
            
          
        
      
        
  
      
    Keybase proof

I hereby claim:

I am ngrinkevich on github.
I am nikgrinkevich (https://keybase.io/nikgrinkevich) on keybase.
I have a public key whose fingerprint is 2010 C31E 8467 2E7B CAAD  A429 B33D B6D8 3F2A 0C9B

To claim this, I am signing this object:
	# Some good references are:
	# http://russbrooks.com/2010/11/25/install-postgresql-9-on-os-x
	# http://www.paolocorti.net/2008/01/30/installing-postgis-on-ubuntu/
	# http://postgis.refractions.net/documentation/manual-1.5/ch02.html#id2630392

	#1. Install PostgreSQL postgis and postgres

	brew install postgis
	initdb /usr/local/var/postgres
	pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start
	import libp2p from 'libp2p'
	import PeerInfo from 'peer-info'
	import WebRTCStar from 'libp2p-webrtc-star'
	import KadDHT from 'libp2p-kad-dht'
	import CID from 'cids'

	class MyBundle extends libp2p {
	constructor (peerInfo) {
	const wstar = new WebRTCStar()
	const modules = {
	function createNode (callback) {
	PeerInfo.create((err, peerInfo) => {
	if (err) {
	return callback(err)
	}

	const peerIdStr = peerInfo.id.toB58String()
	const address = `/dns4/star-signal.cloud.ipfs.team/wss/p2p-webrtc-star/ipfs/${peerIdStr}`
	peerInfo.multiaddrs.add(address)
	const node = new MyBundle(peerInfo)
	createNode((err, node) => {
	if (err) {
	return console.log('Could not create the Node', err)
	}

	node.on('peer:discovery', (peerInfo) => {
	const idStr = peerInfo.id.toB58String()
	console.log('Discovered a peer:', idStr)
	})
	import "AssetLedger.sol";

	// TODO describe rules of exchange.
	// In the AF market all users benefit from a "last look" facility to prevent
	// them falling foul of mechanical arb sniping by those exploiting the way
	// the blockchain and smart contract data lags the real markets being tracked.
	// The system proceeds through a series of batching steps, which in practice
	// might correspond to some number of blocks (for example, each batching step
	// corresponds to a block). Orders collected in batching step B_i are initially
	// in a "pending" state although visible within the book. Orders then remain